What is the Principle of DC Motor 1. Principle : It works on the principle of motion of a current carrying conductor in a magnetic field, according to Fleming’s Left Hand Rule. It is a device which converts electrical energy into mechanical energy of rotation.2. Diagram :3. Construction : It has four mains parts, named below. A field magnet having concave magnetic … [Read more...] about What is the Principle of DC Motor
Physics
What is alternating current and direct current?
What is alternating current and direct current?A direct current flows in one direction only in a circuit. The magnitude Of a direct current may be (a) constant (b) changes with time Figure shows the graph of current against time for some direct currents.An alternating current flows to and fro in two opposite directions in a circuit. Figure shows an … [Read more...] about What is alternating current and direct current?
What is the definition of resistance in physics?
What is the definition of resistance in physics? What is Resistance of a Conductor The movement of electron gives rise to the flow of current through metals. The moving electrons collide with each other as well as with the positive ions present in the metallic conductor. These collisions tend to slow down the speed of the electrons and hence oppose the flow of electric … [Read more...] about What is the definition of resistance in physics?
What is Electric Current
What is Electric Current Electric Charge and Electric CurrentWhat is an electric charge? Objects that exert electric forces are said to have electric charges. Electric charge is the source of electrical force.There are two types of electrical charges, positive (+) and negative (-). Two like charges (+ and + or - and -) repel each other. Two unlike … [Read more...] about What is Electric Current
What do you mean by rectification?
What do you mean by rectification? Diode as a Rectifier:A rectifier is a device that converts alternating current to direct current. It consists of one or more semiconductor devices or vacuum tubes. Diodes are widely used as a rectifier. Rectification is a process of converting alternating current into direct current by using a diode.What is a half wave … [Read more...] about What do you mean by rectification?